in src/global_signal.js [22:27]
function getUuid(participantId) {
const applicationUuid = 'f1776fff-a987-5457-9327-ead2a9e3a4db'
const uuid = uuidv5(participantId, applicationUuid)
// This is to make it compatible with automerge's actorId
return uuid.replace(/-/g, '')
}